In computing, the User-Agent header is an HTTP header intended to identify the user agent responsible for making a given HTTP request. Whereas the character...
15 KB (1,788 words) - 01:20, 12 February 2025
like cURL. The user agent is the client in a client–server system. The HTTP User-Agent header is intended to clearly identify the agent to the server....
1 KB (115 words) - 18:52, 31 May 2025
Email client (redirect from Mail user agent)
reader or, more formally, message user agent (MUA) or mail user agent is a computer program used to access and manage a user's email. A web application which...
21 KB (2,757 words) - 23:41, 1 May 2025
in a response header is not specified. The behavior of Pragma: no-cache in a response is implementation specific. While some user agents do pay attention...
53 KB (2,491 words) - 19:46, 6 June 2025
UAProf (redirect from User Agent Profiling)
multimedia capabilities and more. This XML data is keyed on the User-Agent: header in a web request. Another approach to the problem is to combine real-time...
5 KB (645 words) - 15:51, 28 June 2023
Email#Message header for the format of an email message. Many MUAs allow users to see the raw message source directly, thereby allowing header inspection...
4 KB (597 words) - 23:41, 1 May 2025
Email (redirect from E-mail headers)
envelope and content; the content consists of a header and a body. Computer-based messaging between users of the same system became possible after the advent...
81 KB (8,982 words) - 16:07, 26 May 2025
Web browser (redirect from WWW user agent)
this reason, a web browser is often referred to as an HTTP client or a user agent. Requisite materials, including text, style sheets, images, and other...
27 KB (2,516 words) - 03:23, 19 June 2025
Client Hints (redirect from User-Agent Client Hints)
privacy-focused alternative to user-agent headers. This was done as part of an initiative by Google called Privacy Sandbox. User-agent headers are code snippets sent...
16 KB (1,946 words) - 06:28, 6 June 2025
user agent (e.g. a web browser) to provide a user name and password when making a request. In basic HTTP authentication, a request contains a header field...
7 KB (863 words) - 12:00, 21 May 2025
HTTP Strict Transport Security (category Hypertext Transfer Protocol headers)
the user agent via an HTTP response header field named Strict-Transport-Security. HSTS Policy specifies a period of time during which the user agent should...
24 KB (2,296 words) - 23:37, 17 June 2025
Do Not Track (redirect from Do-Not-Track-Header)
HTTP header field designed to allow internet users to opt out of tracking by websites—which includes the collection of data regarding a user's activity...
20 KB (2,027 words) - 20:31, 12 June 2025
magnolia1234, the extension uses techniques such as manipulating cookies or User-Agent headers, removing or injecting client-side JavaScript code to remove paywall...
5 KB (387 words) - 16:09, 18 June 2025
Session Initiation Protocol (redirect from User Agent Server)
as smartphones. In SIP, as in HTTP, the user agent may identify itself using a message header field (User-Agent), containing a text description of the...
29 KB (3,366 words) - 10:53, 31 May 2025
HTTP (section Request header fields)
in its message body. A web browser is an example of a user agent (UA). Other types of user agent include the indexing software used by search providers...
61 KB (7,794 words) - 11:04, 23 June 2025
Robots.txt (section A "noindex" HTTP response header)
to enter one specific directory: User-agent: BadBot # replace 'BadBot' with the actual user-agent of the bot User-agent: Googlebot Disallow: /private/ Example...
34 KB (3,156 words) - 12:09, 13 June 2025
List of HTTP status codes (redirect from 431 Request Header Fields Too Large)
A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD. A user agent may...
46 KB (5,599 words) - 10:40, 11 June 2025
Browser sniffing (redirect from User-agent sniffing)
used to view the website in a User-Agent header. Extensive browser techniques enable persistent user tracking even if users try to stay anonymous. See device...
5 KB (655 words) - 03:54, 22 November 2024
referrer and user agent headers sent by the requesting client software to prevent their images from being "fuskered", or require users to log in. However...
10 KB (1,180 words) - 08:47, 25 January 2025
SIP user agent; user agents are divided into clients (UACs), which initiate requests, and servers (UASes), which respond to them.: §8 A single user agent...
27 KB (3,020 words) - 05:16, 3 June 2025
HTTP cookie (category Hypertext Transfer Protocol headers)
field of the HTTP request header, but cookies allow for greater precision. This can be demonstrated as follows: If the user requests a page of the site...
93 KB (10,944 words) - 02:30, 24 June 2025
HTTP referer (redirect from Referer header)
website address. Some web browsers give their users the option to turn off referrer fields in the request header. Most web browsers do not send the referrer...
12 KB (1,353 words) - 05:04, 9 March 2025
science, a software agent is a computer program that acts for a user or another program in a relationship of agency. The term agent is derived from the...
24 KB (2,918 words) - 17:58, 20 May 2025
Nokia Xpress (section User agent)
Tablet Browser". EFF Deeplinks blog. Retrieved 30 December 2013. User-Agent headers for Nokia devices - Nokia Developer Wiki. Developer.nokia.com. Retrieved...
7 KB (593 words) - 05:23, 13 June 2024
code will additionally provide a URL in the header field Location. This is an invitation to the user agent (e.g. a web browser) to make a second, otherwise...
3 KB (304 words) - 19:23, 15 June 2025
Cross-site request forgery (redirect from Cookie-to-header token)
of an end user's account. The term "CSRF" is also used as an abbreviation in defences against CSRF attacks, such as techniques that use header data, form...
30 KB (3,709 words) - 13:18, 15 May 2025
Content negotiation (section Agent-driven)
ratings of how well it understands them. More precisely, the user agent provides HTTP headers that lists acceptable aspects of the resource and quality factors...
7 KB (914 words) - 01:56, 18 January 2025
submission agent (MSA), or mail submission agent, is a computer program or software agent that receives electronic mail messages from a mail user agent (MUA)...
9 KB (1,152 words) - 15:21, 24 August 2023
to the website are required to have a UserAgent header, and must not be "default" and "non-descriptive" headers like curl, Python-urllib, HeadlessChrome...
11 KB (1,082 words) - 23:29, 17 June 2025
MIME (section MIME header fields)
used by the reader's mail user agent to store the attachment. The following example is taken from RFC 2183, where the header field is defined: Content-Disposition:...
27 KB (3,544 words) - 11:19, 18 June 2025